Handle combo box control

[sumudu]

Hi,

Q1) How i can set a default value for combo box in add new record row.

Q2) There are 2 combobox type columns available in my GCC.I need to show/hide second combobox according to first combobox value.

How i can do this when i change the first combobox value.It is better if i can implement it within TableControlCurrentCellCloseDropDown event.

Image URL : 

Thanks & Regards,

Sumudu EKanayake

[Neelakandan Kannan]

Hi Sumudu, 

Thanks for using Syncfusion products. 

Query  How i can set a default value for combo box in add new record row.

The reported scenario can be achieved by using the ShowDefaultValuesInAddNewRecord property and setting the default values for each columns using the Fields[“ColumnName”].DefaultValue property. Please make use of the below code,    Code snippet  this.gridGroupingControl1.ShowDefaultValuesInAddNewRecord = true;  this.gridGroupingControl1.TableDescriptor.Fields["CategoryName"].DefaultValue = "Category12345";  this.gridGroupingControl1.TableDescriptor.Fields["Description"].DefaultValue = "Sample2";  this.gridGroupingControl1.TableDescriptor.Fields["CategoryID"].DefaultValue = "Sample1";  this.gridGroupingControl1.TableDescriptor.Fields["SampleData"].DefaultValue = "SampleData12345";

Query  How I can do this when I change the first combobox value.It is better if I can implement it within TableControlCurrentCellCloseDropDown event.

The reported scenario can be achieved by handling the QueryCellStyleInfo event. Here we have provided the sample in which “CategoryID” column combobox will be set to hide when “Description” column’s value is “Sample2”. Please make use of the below code,  Code snippet  this.gridGroupingControl1.QueryCellStyleInfo += new Syncfusion.Windows.Forms.Grid.Grouping.GridTableCellStyleInfoEventHandler(gridGroupingControl1_QueryCellStyleInfo);    void gridGroupingControl1_QueryCellStyleInfo(object sender, Syncfusion.Windows.Forms.Grid.Grouping.GridTableCellStyleInfoEventArgs e)  {      if (e.TableCellIdentity != null && e.TableCellIdentity.Column != null          && e.TableCellIdentity.Column.Name == "CategoryID"          && e.TableCellIdentity.DisplayElement.Kind == Syncfusion.Grouping.DisplayElementKind.Record)      {            //Checks if the "Description" column is having value "Sample2"          if (e.TableCellIdentity.DisplayElement.GetRecord().GetValue("Description").ToString() == "Sample2")          {              //Hiding the ComboBox dropdown button              e.Style.ShowButtons = GridShowButtons.Hide;          }      }  }

Screenshot 

 

Sample 

http://www.syncfusion.com/downloads/support/forum/125454/ze/Sample_ComboBox_Customization1820003715.zip 

Regards, 

Neelakandan